Contents
Chapter
No. Name of the Contents Page No.
Abbreviations
Acknowledgement i
Abstract ii
01 Introduction 1-2
02 Review of literature 3-6
03 Materials and methods 7-9
04 Results 10-16
05 Discussion 17-21
06 Conclusion 22
07 References 23-24
List of the Figures
Figure
No. Title of the Figure Page
No.
01 Adult White New Zealand Rabbit 8 02 Lateral view of the brachial plexus in the rabbit 11 03 Medial view of the brachial plexus in the rabbit 11 04 Branches of median nerve at the palmer part of
metacarpus
13 05 Separation of median nerve from
musculocutaneous nerve at the level of distal end of humerus.
14
06 Digital dorsal and Palmar nerve V (branches of the ulnar nerve) supplies the skin and
subcutaneous tissues of the sole.
14
07 Caudal cutaneous antebrachial nerve (branch of the Ulnar nerve) at the level of cubital joint.
15
Abbreviations
Abbreviation Elaboration
C5 caudal branch of ramus ventralis of C5 spinal nerve
C6 caudal branch of ramus ventralis of C6 spinal nerve
C7 caudal branch of ramus ventralis of C7 spinal nerve
C8 caudal branch of ramus ventralis of C8 spinal nerve
T1 ramus ventralis of T1 spinal nerve T2 cranial branch of ramus ventralis of T2
spinal nerve A cranial trunk
B caudal trunk
C branch binding from cranial trunk to caudal
trunk
Acknowledgement
The author bends his heads to the Almighty who is omnipotent, omniscient and omnipresent for His endless blessing to conduct this research work for the fulfillment of the requirement for the degree of Doctor of Veterinary Medicine (DVM).
The author desires to express his earnest gratefulness and profound appreciation to the following persons for the accomplishment of this dissertation.
The author convening his gratitude and great appreciation to the venerable internship supervisor Professor Dr. Md. Abul Quasem, Department of Anatomy and Histology, Chittagong Veterinary and Animal Sciences University for his valuable guidance, suggestion, supervision and encouragements during the entire period of this study to complete this report.
I would like to express my special gratitude to my respected teacher Dr.
Mohammad Lutfur Rahman, Professor and head, Department of Anatomy and Histology and Dr. A. S. M. Lutful Ahsan, Assistant Professor, Department of Anatomy & Histology, Chittagong Veterinary and Animal Sciences University without their willingness to provide technical co-operation, this study would not be possible, to complete-successfully.
The author also express his thankfulness to Dr. A.S.M. Golam Kibria, Assistant Professor; Dr. Mohiuddin, Assistant Professor and Dr. Subrata Kumar Shil, Lecturer, Department of Anatomy and Histology, Chittagong Veterinary and Animal Sciences University who were involved during every phase of this study through its inception & completion.
Last but not least, the author is profoundly grateful to all of his well wishers, room mates and close friends for their encouragements and inspiration during her study period and preparation of this report at this level.
The Author May,2012
i
Abstract
The origin and distribution of nerves arising from the brachial plexus of the White New Zealand Rabbit (Oryctolagus cuniculus) was investigated. Ten adult clinically healthy male and female white New Zealand rabbit were used for this study. By thoroughly dissection it was found that the brachial plexus of the white New Zealand rabbit was formed by ventral branches of C5, C6, C7, C8, T1 and T2 spinal nerves. The rami ventralis of C5 and T2 were divided into two branches. The caudal branch of C5 and cranial branch of T2 contributed to the brachial plexus. The caudal branch of C5 and C6 constituted the cranial trunk and the caudal trunk was formed by a branch which came from cranial trunk, rami ventralis of C7, C8, T1 and the cranial branch of ventral ramus of T2. Nerves orginated from caudal trunk, cranial pectoral nerves, constituted four branches spreading in pectoral muscles. Musculocutenoeus nerve gives ramus muscularis distalis to brachial muscle, center of antebrachium and medial cutaneous antebrachii muscle. Other branch divided into digital dorsal common I and II nerve at level of phalanx proxima. Axillary nerve gives a branch to subscapular muscle and ends as cranial cutaneous antebrachii.
Radial nerve divided into two branches as ramus profundus and ramus superficial which was divided into digital dorsal common III and IV nerve and lateral cutaneus antebrachial nerve. Thoracodorsal nerve innervate the latissimus dorsi muscle. Median nerve was divided into digital dorsal common I, II, III and IV nerve. Ulnar nerve was divided into digital dorsal common IV and digital dorsal common V nerve after giving a branch, caudal cutaneous antebrachii. Lateral thoracic and caudal pectoral nerves orginated from caudal trunk, from which lateral thoracic nerve passed through pectoral ascendens muscle and caudal pectoral nerve gave two branches which spreaded to lower part of cutaneous trunci muscle and caudal part of pectoral ascendens muscle. Contribution of nerves emanating from brachial plexus distributed to the different muscles of the forearm resemble to porcupine and differ from those of rat, mouse and other mammals.
Key words: White New Zealand Rabbit, Brachial Plexus, Forelimb.
ii
